Air conditioning for extensions and kitchen-diners in Romford
In Romford, a side wall of a single-storey extension is usually the neatest place for the indoor unit. London's dense streets hold heat overnight, so top-floor flats and loft rooms often stay warm long after sunset.
An extension in Romford with a roof lantern or large glazed doors can overheat quickly on a sunny afternoon. Romford sits around 14 miles from central London, inside our London area. That includes the RM1 postcode district.
Prices in Romford
Guide prices around Romford run from £1,895 to £5,845 per space including VAT. That is above the UK middle, mainly because labour and access cost more in London. Concealed pipework, access equipment for high walls and any electrical work are what push prices towards the upper figure. On our London figures, the Large single option (one 5–7 kW unit for a large glazed space) is about £2,695–£3,745.
Single unit
One 3.5–5 kW unit for a medium extension.
Large single
One 5–7 kW unit for a large glazed space.
Twin units
Two indoor units on a multi-split for long or L-shaped spaces.
Guide prices show VAT at 20%. HMRC treats most fixed air conditioners and air-to-air heat pumps installed in homes as energy-saving materials, zero-rated until 31 March 2027 when we supply and fit them. If your installation qualifies, your quote shows 0% VAT and a lower price. Servicing, repairs, cleaning and controls are charged at 20%.
Planning and permissions
In England, most houses can have an outdoor unit under permitted development if it is no larger than 1.5 m³, meets the MCS 020(a) noise limit of 37 dB(A) at the nearest neighbour's window, and there are no more than two on a detached house or one on other houses. Listed buildings need consent.
The survey
We book surveys in Romford at a time that suits you, including early evenings by arrangement, and send the written quote afterwards. On a survey in Romford the engineer looks at room size, glazing, the route for pipes and drains, the electrics and where the outdoor unit can sit quietly, then the written quote follows.
What is included
Included as standard in Romford:
- Pressure test, vacuum and commissioning
- Free survey with glazing and roof heat-gain check
- Hidden routes during the build, or neat surface routes after
- One or two units sized for the whole space
- Placement clear of the hob and oven
Nearby
Close to Romford, our coverage also includes Hornchurch (2 miles), Dagenham (2 miles) and Becontree (3 miles). See all services in Romford or air conditioning for extensions and kitchen-diners across London.

